Home / 43,318.79-64,980.48-12,156.47

Finding the Fourth Proportional to 43,318.79, 64,980.48 and 12,156.47

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Solution

The fourth proportional to 43,318.79, 64,980.48 and 12,156.47 is: 18,235.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,318.79 : 64,980.48 = 12,156.47 : x
  2. Step 2: Convert to fraction form
    43,318.79/64,980.48 = 12,156.47/x
  3. Step 3: Cross multiply
    43,318.79x = 64,980.48 × 12,156.47
  4. Step 4: Simplify right side
    43,318.79x = 789,933,255.71
  5. Step 5: Solve for x
    x = 789,933,255.71/43,318.79
  6. Step 6: Final answer
    x = 18,235.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.